assuming
From LSJ
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
English > Greek (Woodhouse)
adj.
Insolent: P. ὑβριστικός.
Meddlesome: Ar. and P. πολυπράγμων.
Aggressive: P. πλεονεκτικός.
Assuming that, if: P. and V. εἰ, ἐάν; see suppose.